diff --git a/tools/qfcc/source/glsl-parse.y b/tools/qfcc/source/glsl-parse.y
index a5b91c597..348fae2a7 100644
--- a/tools/qfcc/source/glsl-parse.y
+++ b/tools/qfcc/source/glsl-parse.y
@@ -331,7 +331,7 @@ function_definition
 			$<symtab>$ = current_symtab;
 			auto spec = $1;
 			spec.sym->params = spec.params;
-			spec.is_overload = true;
+			spec.is_overload = strcmp (spec.sym->name, "main") != 0;
 			spec.type = find_type (parse_params (spec.type, spec.params));
 			spec.sym = function_symbol (spec, ctx);
 			current_func = begin_function (spec, nullptr, current_symtab, ctx);
diff --git a/tools/qfcc/source/target_spirv.c b/tools/qfcc/source/target_spirv.c
index 743239285..577a2ec2f 100644
--- a/tools/qfcc/source/target_spirv.c
+++ b/tools/qfcc/source/target_spirv.c
@@ -817,6 +817,10 @@ spirv_function (function_t *func, spirvctx_t *ctx)
 static void
 spirv_EntryPoint (entrypoint_t *entrypoint, spirvctx_t *ctx)
 {
+	if (!entrypoint->func) {
+		error (0, "entry point %s never defined", entrypoint->name);
+		return;
+	}
 
 	unsigned func_id = spirv_function (entrypoint->func, ctx);
 	int len = strlen (entrypoint->name) + 1;
@@ -2065,8 +2069,7 @@ static void
 spirv_build_code (function_t *func, const expr_t *statements)
 {
 	func->exprs = statements;
-	if (strncmp ("main", func->o_name, 4) == 0
-		&& (!func->o_name[4] || func->o_name[4] == '|')) {
+	if (strcmp ("main", func->o_name) == 0) {
 		attribute_t *mode = nullptr;
 		if (pr.module->default_model == SpvExecutionModelFragment) {
 			mode = new_attribute ("mode",